SF6 gas in medium-voltage switchgear - Siemens USA has been widely used in high-voltage circuit breakers for decades, but its use in medium-voltage is relatively recent. In the medium-voltage arena, SIemens uses SF6 gas in the load interrupting switch and switch-disconnector in SIMOSEC metal-enclosed load interrupter switchgear rated up to 27.6 kV. Characteristics and properties
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Myth About SF6 Gas In Electrical Equipment· 3. Is SF6 harmful for the environment? It has no ecotoxic potential, it does not deplete ozone. Due to its high global warming potential of 22.200 (*) it may contribute to the man made greenhouse-effect, if it is released into the atmosphere. However in electrical switchgear the SF6 gas is always used in gas-tight compartments, greatly minimising leakage.
Medium-Voltage Load-Interrupter Switchgear - Siemens· DOC file· Web viewThis specification defines the technical requirements for indoor or outdoor type, air-insulated switchgear (AIS) equipped with two- or three-position load-interrupter switches. This specification covers the design, manufacture, factory production testing of SF6 load-interrupter switchgear and associated equipment.
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